The Lennox Y8810 Supco SPR5 Ultra Start Hard Start Kit is designed to provide reliable starting assistance for air conditioning and heat pump compressors. This kit combines a high-quality start capacitor with a solid-state relay to deliver an extra boost of torque during startup, helping compressors start faster and more efficiently. It is an ideal solution for systems experiencing hard starts, voltage drop issues, or extended compressor life requirements.

This hard start kit is commonly used in residential and light commercial HVAC applications where dependable compressor startup is critical, especially in high-load or high-temperature conditions.

 

Key Features:

• Supports compressors rated from 1 to 3 HP
• Operating voltage range of 208–265 VAC
• Solid-state relay design with built-in start capacitor
• Reduces startup stress on compressors
• Helps prevent nuisance breaker trips and locked rotor conditions
• Compact design for easy installation in tight electrical compartments
• Suitable for air conditioning and heat pump systems

 

Applications:

• Residential air conditioners
• Heat pumps
• Replacement or upgrade hard start kits
• Systems with aging compressors or marginal electrical supply

 

Technical Specifications:

• Manufacturer: Supco
• Model: SPR5 Ultra Start
• Horsepower range: 1–3 HP
• Voltage: 208–265 VAC
• Type: Hard start kit with start capacitor and solid-state relay
• Application: Compressor starting assistance

Compatibility Notes
The Lennox Y8810 Supco SPR5 is compatible with a wide range of HVAC compressors within the specified horsepower and voltage range. Always verify system requirements and compressor ratings before installation.